Crossword Genius

Book with a hundred stories from journalist upset PM (9)

Ross

I believe the answer is:

decameron

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'book with a hundred stories' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'journalist upset pm' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'upset' says the letters should be written backwards.
'pm' becomes 'cameron' (David Cameron, former UK prime minister).
'ed' back-to-front is 'de'.
'de'+'cameron'='DECAMERON'

'from' is the link.

Can you help me to learn more?

(Other definitions for decameron that I've seen before include "Collected tales" , "One hundred stories" , "Boccaccio's tales" , "Boccaccio's best-known work" , "Collection of 100 short stories by Boccaccio - rename cod (anag)" .)

I've seen this clue in The Telegraph.
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